Add LCN scene platform (#24242)

homeassistant/components/lcn/scene.py

@@ -0,0 +1,66 @@
+"""Support for LCN scenes."""
+import pypck
+
+from homeassistant.components.scene import Scene
+from homeassistant.const import CONF_ADDRESS
+
+from . import LcnDevice
+from .const import (
+    CONF_CONNECTIONS, CONF_OUTPUTS, CONF_REGISTER, CONF_SCENE, CONF_TRANSITION,
+    DATA_LCN, OUTPUT_PORTS)
+from .helpers import get_connection
+
+
+async def async_setup_platform(hass, hass_config, async_add_entities,
+                               discovery_info=None):
+    """Set up the LCN scene platform."""
+    if discovery_info is None:
+        return
+
+    devices = []
+    for config in discovery_info:
+        address, connection_id = config[CONF_ADDRESS]
+        addr = pypck.lcn_addr.LcnAddr(*address)
+        connections = hass.data[DATA_LCN][CONF_CONNECTIONS]
+        connection = get_connection(connections, connection_id)
+        address_connection = connection.get_address_conn(addr)
+
+        devices.append(LcnScene(config, address_connection))
+
+    async_add_entities(devices)
+
+
+class LcnScene(LcnDevice, Scene):
+    """Representation of a LCN scene."""
+
+    def __init__(self, config, address_connection):
+        """Initialize the LCN scene."""
+        super().__init__(config, address_connection)
+
+        self.register_id = config[CONF_REGISTER]
+        self.scene_id = config[CONF_SCENE]
+        self.output_ports = []
+        self.relay_ports = []
+
+        for port in config[CONF_OUTPUTS]:
+            if port in OUTPUT_PORTS:
+                self.output_ports.append(pypck.lcn_defs.OutputPort[port])
+            else:  # in RELEAY_PORTS
+                self.relay_ports.append(pypck.lcn_defs.RelayPort[port])
+
+        if config[CONF_TRANSITION] is None:
+            self.transition = None
+        else:
+            self.transition = pypck.lcn_defs.time_to_ramp_value(
+                config[CONF_TRANSITION])
+
+    async def async_added_to_hass(self):
+        """Run when entity about to be added to hass."""
+
+    async def async_activate(self):
+        """Activate scene."""
+        self.address_connection.activate_scene(self.register_id,
+                                               self.scene_id,
+                                               self.output_ports,
+                                               self.relay_ports,
+                                               self.transition)